Effect of Puccinellia tenuiflora growth on nitrogen content of alkalized soil in Song-Nen plain
The total nitrogen content, alkali-soluble nitrogen content, ammonification intensity, nitrogen fixation intensity, urease activity, protinase activity, nitrite reductase activity and nitrate reductase activity of alkalized soil of which Puccinellia tenuiflora grown for different years increased that compared with alkali spot soil, and there are difference between the soil of which P. tenuiflora grown for different years. The total nitrogen content of the soil of which P. tenuiflora grown for different years has significant difference with alkali spot soil, and the alkalisoluble nitrogen content of the soil of P. tenuiflora grown for three or four years has significant difference with alkali spot soil, but the ammonification intensity, nitrogen fixation intensity, urease, proteinase, nitrite reductase and nitrate reductase activity of alkalized soil of which P. tenuiflora grown for three, four or five years have the significant difference with that of alkali spot soil. All of above indicated that the growth of P. tenuiflora has the improvement effect upon nitrogen nutrition status of alkalized soil, and which grown for 3~5 years is the best of all.
Puccinellia tenuiflora Alkaline soil Nitrogen nutrition Soil enzyme activity
Gang Chen Yongzhen Peng Guorong Sun
College of Bioscience and Biotechnology Yangzhou University Yangzhou 225009, China School of Municipal and Environmental Engineering, Harbin Institute of Technology College of Bioscience and Biotechnology Yangzhou University Yangzhou 225009, China
国际会议
上海
英文
4318-4321
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）